O2 continuing to dangle the free 4G carrot

In March we told you how O2 were rolling out 4G for free to selected customers. Now it looks like they’re taking it one stage further, with texts rolling out to further customers to offer free 4G upgrades.

The odd phone call to O2 also seems to be working, with some existing O2 customers getting the “OK” over the phone provided they have a certain package. From what we’re hearing in the HotUKDeals post it seems that you might need to have a package with at least 1GB of data per month, else they’ll be charging you £3 per month for the privilege.